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University of Tsukuba

University of Tsukuba uses 132,100 IPv4 addresses in 4 ranges, by the registry records IP Company reads.

tsukuba.ac.jp·Japan

132,100
IPv4 addresses
4
IPv4 ranges
0
IPv6 ranges
1
AS it operates
1
country

About the company

Who it is, where it is registered and who owns it.

Description
University in Ibaraki Prefecture, Japan
Founded
1973
Headquarters
Tennodai

Who routes its space

The networks announcing its IPv4, by the addresses each announces.

  1. AS37917 University of Tsukuba132,096 · 100.00%
  2. AS2907 Research Organization of Information and Systems, National Institute of Informatics4 · 0.00%

Where its space is

Its IPv4 that IP Geolocation places, by country. A /24 counts for the company using most of it.

  1. Japan132,096 · 100.00%

Networks it operates

The autonomous systems registered under its domain, by the IPv4 each announces anywhere.

ASNNAMETYPEREGISTEREDIPV4
AS37917University of TsukubaEducationJapan132,096

What the databases see

Addresses each address-keyed database holds in its IPv4, as a share of it, with the largest providers. A /24 counts for the company using most of it; counts overlap.

Speed tests

Speeds measured from its space in the last 90 days.

From M-Lab
39.6 Mbps
median download
85.4 Mbps
median upload
72
download tests
71
upload tests

Its address ranges

Its largest IPv4 ranges, then its IPv6 ones, as IP Company draws them, with the network announcing each.

RANGEIPV4ORIGIN
130.158.0.0/1665,536AS37917
133.51.0.0/1665,536AS37917
163.220.252.0/221,024AS37917
210.137.32.88/304AS2907
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